Harrow.



PATENTED MAY 15, 1906,,

J. W. NEWTON.

HARROW.

APPLICATION nun) NOV. 4, mos.

Wit-names UN TED srarns PATENT OFFICE.

JOEL W. NEWTON, OF ELBERTON, GEORGIA, ASSIGNOR OF ONE-HALF TO GEORGE T. TAYLOR, OF ELBERTON, GEORGIA.

HARROW.

Specification of Letters Patent.

' Patented May 15, 1906.

Application filed November 4,1905. Serial No. 285,893-

which it appertains to make and use the same.

My invention relates to harrows; and its object is to provide a light, simple, and durable device of this character which can be adjusted laterally, so as to increase or diminish its width, and which has teeth which are detachably mounted upon the frame of the harrow.

A still further object is to provide novel means for securing the harrow in adjusted position.

With the above and other objects in view the invention consists of certain novel features of construction and combination of parts, which will be hereinafter more fully described, and pointed out in the claims.

In the accompanying drawings I have shown the preferred form of my invention.

In said drawings, Figure 1 is a top plan view of my improved harrow. Fig. 2 is a side elevation thereof. Fig. 3 is a section on line 3 3, Fig. 2. Fig. 4 is an enlargedsection through one of the means employed for fastening the teeth to the harrow, and Fig. 5 is a detail view of the bolt used in connection with said means.

Referring to the figures by numerals of reference, 1 is the main beam terminating in an upwardly-turned neck 2, having apertures 3 for the reception of suitable draft devices. Notches 4 are formed within this beam close to the neck 2, and fitted within them are intermediate portions of yokes 5, which are mounted upon the upper and lower faces, respectively, of the beam and are fastened within the notches by means of plates 6, which are clamped upon the yokes and beams by means of bolts 7. The yokes 5 terminate in hooks 8 at their ends, the hooks of the upper yoke extending upward while the hooks of the lower yoke project downward.

Mounted within the hooks of the upper yoke 5 are cross-strips 9, the inner ends of which overlap, and similar cross-strips 10,

having overlapping ends, are disposed within the hooks of the lower yoke 5. The overlapping portions of these strips 9 and 10 extend across and in contact with the upper and lower faces, respectively, of the beam 1, and the inner ends of all the strips 9 and 10 are tightly clamped upon said beam 1 by, preferably, four bolts 11, which extend through the corners of angular plates 12, arranged upon the strips 9 and below the strips 10. Pivot-pins 13 connect the outer ends of the strips 9 and 10, and mounted on each of these pins is a side bar 14. These side bars extend backward to and engage pivot-pins 15, connecting the outer ends of upper and lower cross-strips 16 and 17, respectively. The

upper strips 16 overlap at their inner ends and bear upon the upper surface of the beam 1, and the lower strips 17 also overlap at their inner ends and are adapted to bear upon the lower surface of beam 1. The four overlapping ends of these strips are clamped upon the beam 1 and held against displacement by bolts 18, which extend through the bars of top and bottom plates 19 and are adapted to clamp said plates upon the strips and to bind them on the beam 1. Handles 20 are fastened to the beam 1 in any desired manner, as by means of a strap 21, and braces 22 also connect these handles with the beam. Secured to each of the side bars 14 adjacent each of its ends is a tooth 23, the shank 24 of which extends across the inner face of the side strip and is held clamped thereagainst by plates 25, which are fastened together by bolts 26, having teeth 27 out thereinto and adapted to contact with the edges of the shank and with the upper and lower edges of the side bar. The upper bolt passing through the plates 25 is located in front of the shank 24, while the lower bolt is located in the rear thereof, so that when the harrow is drawn forward the tendency of the shank is to press against the teeth of the bolts 26, so that said teeth will bite into them and prevent them from slipping. Another point 23 is preferably connected to the beam 1, and while I have shown but five teeth arranged on the harrow it will of course be understood that any number may be employed. Should it be desired to increase or diminish the width of the rear end of the harrow, it is merely necessary to loosen the bolts 18 and to slide the strips 16 and 17 from or toward each other, after which the bolts can be tightened and all portions of the harrow will be securely locked. The front end of the harrow can be adjusted in a similar manner, and by removing diagonally-opposed teeth of the harrow the same can be converted into a side harrow and the teeth placed at any distances apart by regulating the width of the frame of the device. If desired, knives may be substituted for the teeth shown in the drawings, so as to convert the device into a cut-away harrow for use in cutting turf or stiff land.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a harrow the combination with a beam; of overlapping cross-strips upon the beam and extending laterally therefrom, side bars pivoted to the cross-strips, and means for clamping the overlapping ends to the beam to lock the cross-strips in adjusted positions.

2. In a harrow the combination with a beam; of overlapping cross-strips extending in opposite directions from the beams adjacent the ends thereof, side bars pivoted to the cross-strips, and means for clamping the overlapping ends of the cross-strips to the beam to lock them in adjusted positions.

3. In a harrow the combination with a beam; of overlapping cross-strips arranged above and below the beam adjacent its ends, side bars pivoted between the cross-strips, means for clamping the overlapping ends of the cross-strips upon the beam, and a yoke secured to the beam and engaging the crossstrips at one end of the beam.

4. In a harrow the combination with a centrally-disposed beam; of overlapping cross-strips extending laterally from the beam adjacent one end thereof, means for clamping the overlapping ends of said strips to the beam, hooked yokes secured to the beam and engaging the strips, side bars pivoted to said strips at opposite sides of the beam, overlapping cross-strips extending laterally from the beam adjacent its other end, said side bars being pivoted between said strips, and means for clamping said last-mentioned cross-strips upon the beam to hold the same in adjusted position.

5. In a harrow the combination with a centrally-disposed beam; of overlapping cross-strips extending laterally from the beam adjacent one end thereof, means for clamping the overlapping ends of said strips to the beam; hooked yokes secured to the beam and engaging the strips, side bars pivoted to said strips at opposite sides of the beam, overlapping cross-strips extending laterally from the beam adjacent its other end, said side bars being pivoted between said strips, means for clamping said last-mentioned cross-strips upon the beam to hold the same in adjusted position, teeth secured to and depending from the beam and side bars, and means for adjustably securing said teeth to the bars and beam, respectively, said means adapted to engage the teeth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOEL W. NEWTON.

Witnesses:

GEO. T. TAYLOR, W. A. RUOKER. 

